remove custom validictory upgrade (1.0.0 is on pypi)
remove custom validictory upgrade (1.0.0 is on pypi)

simon-weber/gmusicapi,tanhaiwang/gmusicapi,dvirtz/gmusicapi,simon-weber/Unofficial-Google-Music-API,thebigmunch/gmusicapi,TheOpenDevProject/gmusicapi,dvirtz/gmusicapi